Unless TDK has made major changes, the TDK Lambda Genesys does not support those commands.

There is no SCPI (SYST:REM)

The OUTP VOLT 95 would be PV 95 <-- edited

The OUTP ON/OUTP OFF would be OUT [ 1 | ON ] OUT [ 0 | OFF ]

There is no FREQ command for TDK

The Genesys does not support 2-wire RS-485. As the TDK tech person told me:

The supply will see the command, send the OK, see its own OK and respond to the OK -- ad nauseam.

I use a lot of Genesys PSUs with P-Series CPUs.

I will attempt to answer your comms questions -- and possibly some code questions.

Do you have a TDK/Lambda Genesys manual? the command list should be in that book.

If not, I (think that I) can provide it the command list

My (rough) procedure is:

1. Send ADR ## (## is the node address of the desired PSU)
2. Receive OK
3. Send RST
4. Receive OK
5. Send IDN?
6. Receive OK
7. Send PC #.## (#.## is current limit)
8. Receive OK
9. Send PV ###.## (###.## is voltage limit)
10. Receive OK
11. Send OUT 1 (turn on power supply output)
12. Receive OK

The OK (ASCII 79 and 75) is the response from the addressed PSU - from step 1.

To communicate with multiple power supplies, you can then repeat this procedure using the node address of the next power supply or you can use the global commands.

With the global commands, ALL power supplies in the chain will execute the command. You will NOT receive an OK.